[jdk17u-dev] RFR: 8295239: Refactor java/util/Formatter/Basic script into a Java native test launcher

[Goetz Lindenmaier]

I backport this to improve testing in 17.

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Commit messages:
 - Backport 902162ca9f0fc589b888e73862275554691697f4

Changes: https://git.openjdk.org/jdk17u-dev/pull/2927/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2927&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295239
  Stats: 185 lines in 3 files changed: 106 ins; 63 del; 16 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2927.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2927/head:pull/2927

PR: https://git.openjdk.org/jdk17u-dev/pull/2927